4. Multiplex communications
  5. Wide area network
  6. Packet switching

Motohiro Kokumai

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Echo canceller

Telephonic communications – Subscriber line or transmission line interface – Network interface device
Patent

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Method for cancelling echo in a transmitter and an apparatus the

Multiplex communications – Wide area network – Packet switching
Patent

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Method for cancelling echo in a transmitter and an apparatus the

Multiplex communications – Wide area network – Packet switching
Patent

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Terminal apparatus for full-duplex data transmission having an e

Multiplex communications – Wide area network – Packet switching
Patent

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Transmission apparatus and method

Pulse or digital communications – Spread spectrum – Direct sequence
Patent

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Profile ID: LFUS-PAI-P-431007

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